/*      $NetBSD: ipc.h,v 1.7 2019/02/21 08:25:00 mrg Exp $      */

/*
 * Copyright (c) 1990, 1993
 *      The Regents of the University of California.  All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)ipc.h       8.4 (Berkeley) 2/19/95
 */

/*
 * SVID compatible ipc.h file
 */

#ifndef _COMPAT_SYS_IPC_H_
#define _COMPAT_SYS_IPC_H_

#ifdef _KERNEL
#include <lib/libkern/libkern.h>
#else
#include <string.h>
#endif

__BEGIN_DECLS
/*
 * Old IPC permission structure used before NetBSD 1.5.
 */
struct ipc_perm14 {
        unsigned short  cuid;   /* creator user id */
        unsigned short  cgid;   /* creator group id */
        unsigned short  uid;    /* user id */
        unsigned short  gid;    /* group id */
        unsigned short  mode;   /* r/w permission */
        unsigned short  seq;    /* sequence # (to generate unique
                                   msg/sem/shm id) */
        key_t   key;            /* user specified msg/sem/shm key */
};

static __inline void    __ipc_perm14_to_native(const struct ipc_perm14 *, struct ipc_perm *);
static __inline void    __native_to_ipc_perm14(const struct ipc_perm *, struct ipc_perm14 *);
static __inline void
__ipc_perm14_to_native(const struct ipc_perm14 *operm, struct ipc_perm *perm)
{

        memset(perm, 0, sizeof *perm);
#define CVT(x)  perm->x = operm->x
        CVT(uid);
        CVT(gid);
        CVT(cuid);
        CVT(cgid);
        CVT(mode);
#undef CVT
}

static __inline void
__native_to_ipc_perm14(const struct ipc_perm *perm, struct ipc_perm14 *operm)
{

        memset(operm, 0, sizeof *operm);
#define CVT(x)  operm->x = perm->x
        CVT(uid);
        CVT(gid);
        CVT(cuid);
        CVT(cgid);
        CVT(mode);
#undef CVT

        /*
         * Not part of the API, but some programs might look at it.
         */
        operm->seq = perm->_seq;
        operm->key = perm->_key;
}

#if defined(_KERNEL) && defined(SYSCTLFN_ARGS)
int sysctl_kern_sysvipc50(SYSCTLFN_ARGS);
#define KERN_SYSVIPC_OMSG_INFO          1       /* msginfo and msqid_ds50 */
#define KERN_SYSVIPC_OSEM_INFO          2       /* seminfo and semid_ds50 */
#define KERN_SYSVIPC_OSHM_INFO          3       /* shminfo and shmid_ds50 */
#endif

__END_DECLS

#endif /* !_COMPAT_SYS_IPC_H_ */